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Medusa

Ecommerce Dev No key

AuthenticationNo key
Rate limitSelf-hosted open source: no API limits or fees; bounded by your own infrastructure.

Documentation: docs.medusajs.com ยท Checked Sep 13, 2026

About

Medusa is a free, MIT-licensed open-source commerce backend you self-host, covering products, carts, orders, customers, payments, and shipping through REST APIs. The Store API handles storefront requests using publishable API keys, while the Admin API powers dashboards and operations. Because it is open source, there are no transaction fees or monthly platform costs beyond your own hosting. It is a strong foundation for custom storefronts and marketplaces.

Details

No key needed. You can call it right away.

Auth: No key

Rate limit: Self-hosted open source: no API limits or fees; bounded by your own infrastructure.

Verified: 2026-09-13

Best for: custom storefronts marketplaces headless commerce

Read the docs Back to catalog

Setup

  1. Install the Medusa backend with the official CLI or Docker.
  2. Start the server locally on port 9000.
  3. Create a publishable API key in the admin dashboard.
  4. Seed or add products through the admin.
  5. Call the Store API with the x-publishable-api-key header.
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